气候变化领域集成服务门户(CCPortal): Terrestrial Evaporation and Moisture Drainage in a Warmer Climate

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DOI	10.1029/2019GL086498
	Terrestrial Evaporation and Moisture Drainage in a Warmer Climate
	Short Gianotti D.J.; Akbar R.; Feldman A.F.; Salvucci G.D.; Entekhabi D.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:5
英文摘要	To determine hydrologic changes in a warmer climate, we impose precipitation and potential evaporation (Eo) perturbations on hydrologic response functions constructed from precipitation and satellite soil moisture observations across the United States. Despite nonlinearities in the evaporation (E) and drainage (D) responses and opposing-sign perturbations, changes in individual fluxes are superposable. Empirical frameworks (Budyko) can misrepresent changes in E/D partitioning by neglecting shifts/trends in hydrologic regime and subseasonal precipitation dynamics. E/D both increase to balance mean precipitation ((Formula presented.)) increases, and increased Eo reduces soil moisture. E and D are generally more elastic to changes in (Formula presented.) than Eo. The results suggest that (1) the impacts of regional hydrologic perturbations may allow for simple superposition/scaling, (2) changes in timing/intensity of precipitation may have substantial impacts on mean moisture states and fluxes, and (3) changes to the distribution of surface moisture states are likely more relevant for E/D partitioning than common aridity indices. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Evaporation; Runoff; Soil moisture; Aridification; hydroclimate; Hydrologic changes; Hydrologic response; Land-atmosphere couplings; Mean precipitation; Potential evaporation; Satellite soil moisture; Climate change; aridification; aridity; climate change; evapotranspiration; hydrological change; hydrometeorology; land-atmosphere interaction; rainfall-runoff modeling; United States
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170615
作者单位	Parsons Laboratory, Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, United States; Department of Earth and Environment, Boston University, Boston, MA, United States
推荐引用方式 GB/T 7714	Short Gianotti D.J.,Akbar R.,Feldman A.F.,et al. Terrestrial Evaporation and Moisture Drainage in a Warmer Climate[J],2020,47(5).
APA	Short Gianotti D.J.,Akbar R.,Feldman A.F.,Salvucci G.D.,&Entekhabi D..(2020).Terrestrial Evaporation and Moisture Drainage in a Warmer Climate.Geophysical Research Letters,47(5).
MLA	Short Gianotti D.J.,et al."Terrestrial Evaporation and Moisture Drainage in a Warmer Climate".Geophysical Research Letters 47.5(2020).